1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
10 #include "capability-util.h"
11 #include "cpu-set-util.h"
14 #include "errno-list.h"
20 #include "missing_prctl.h"
22 #include "mount-util.h"
23 #include "path-util.h"
24 #include "process-util.h"
27 #include "seccomp-util.h"
30 #include "signal-util.h"
31 #include "static-destruct.h"
32 #include "stat-util.h"
34 #include "tmpfile-util.h"
36 #include "user-util.h"
39 #define PRIVATE_UNIT_DIR "/run/test-execute-unit-dir"
41 static char *user_runtime_unit_dir
= NULL
;
42 static bool can_unshare
;
44 STATIC_DESTRUCTOR_REGISTER(user_runtime_unit_dir
, freep
);
46 typedef void (*test_function_t
)(Manager
*m
);
48 static int cld_dumped_to_killed(int code
) {
49 /* Depending on the system, seccomp version, … some signals might result in dumping, others in plain
50 * killing. Let's ignore the difference here, and map both cases to CLD_KILLED */
51 return code
== CLD_DUMPED
? CLD_KILLED
: code
;
54 static void wait_for_service_finish(Manager
*m
, Unit
*unit
) {
55 Service
*service
= NULL
;
57 usec_t timeout
= 2 * USEC_PER_MINUTE
;
62 service
= SERVICE(unit
);
63 printf("%s\n", unit
->id
);
64 exec_context_dump(&service
->exec_context
, stdout
, "\t");
65 ts
= now(CLOCK_MONOTONIC
);
66 while (!IN_SET(service
->state
, SERVICE_DEAD
, SERVICE_FAILED
)) {
70 r
= sd_event_run(m
->event
, 100 * USEC_PER_MSEC
);
73 n
= now(CLOCK_MONOTONIC
);
74 if (ts
+ timeout
< n
) {
75 log_error("Test timeout when testing %s", unit
->id
);
76 r
= unit_kill(unit
, KILL_ALL
, SIGKILL
, SI_USER
, 0, NULL
);
78 log_error_errno(r
, "Failed to kill %s: %m", unit
->id
);
84 static void check_main_result(const char *file
, unsigned line
, const char *func
,
85 Manager
*m
, Unit
*unit
, int status_expected
, int code_expected
) {
86 Service
*service
= NULL
;
91 wait_for_service_finish(m
, unit
);
93 service
= SERVICE(unit
);
94 exec_status_dump(&service
->main_exec_status
, stdout
, "\t");
96 if (cld_dumped_to_killed(service
->main_exec_status
.code
) != cld_dumped_to_killed(code_expected
)) {
97 log_error("%s:%u:%s %s: can_unshare=%s: exit code %d, expected %d",
98 file
, line
, func
, unit
->id
, yes_no(can_unshare
),
99 service
->main_exec_status
.code
, code_expected
);
103 if (service
->main_exec_status
.status
!= status_expected
) {
104 log_error("%s:%u:%s: %s: can_unshare=%s: exit status %d, expected %d",
105 file
, line
, func
, unit
->id
, yes_no(can_unshare
),
106 service
->main_exec_status
.status
, status_expected
);
111 static void check_service_result(const char *file
, unsigned line
, const char *func
,
112 Manager
*m
, Unit
*unit
, ServiceResult result_expected
) {
113 Service
*service
= NULL
;
118 wait_for_service_finish(m
, unit
);
120 service
= SERVICE(unit
);
122 if (service
->result
!= result_expected
) {
123 log_error("%s:%u:%s: %s: can_unshare=%s: service end result %s, expected %s",
124 file
, line
, func
, unit
->id
, yes_no(can_unshare
),
125 service_result_to_string(service
->result
),
126 service_result_to_string(result_expected
));
131 static bool check_nobody_user_and_group(void) {
132 static int cache
= -1;
139 if (!synthesize_nobody())
142 p
= getpwnam(NOBODY_USER_NAME
);
144 !streq(p
->pw_name
, NOBODY_USER_NAME
) ||
145 p
->pw_uid
!= UID_NOBODY
||
146 p
->pw_gid
!= GID_NOBODY
)
149 p
= getpwuid(UID_NOBODY
);
151 !streq(p
->pw_name
, NOBODY_USER_NAME
) ||
152 p
->pw_uid
!= UID_NOBODY
||
153 p
->pw_gid
!= GID_NOBODY
)
156 g
= getgrnam(NOBODY_GROUP_NAME
);
158 !streq(g
->gr_name
, NOBODY_GROUP_NAME
) ||
159 g
->gr_gid
!= GID_NOBODY
)
162 g
= getgrgid(GID_NOBODY
);
164 !streq(g
->gr_name
, NOBODY_GROUP_NAME
) ||
165 g
->gr_gid
!= GID_NOBODY
)
176 static bool check_user_has_group_with_same_name(const char *name
) {
184 !streq(p
->pw_name
, name
))
187 g
= getgrgid(p
->pw_gid
);
189 !streq(g
->gr_name
, name
))
195 static bool is_inaccessible_available(void) {
197 "/run/systemd/inaccessible/reg",
198 "/run/systemd/inaccessible/dir",
199 "/run/systemd/inaccessible/chr",
200 "/run/systemd/inaccessible/blk",
201 "/run/systemd/inaccessible/fifo",
202 "/run/systemd/inaccessible/sock")
203 if (access(p
, F_OK
) < 0)
209 static void start_parent_slices(Unit
*unit
) {
212 slice
= UNIT_GET_SLICE(unit
);
214 start_parent_slices(slice
);
215 int r
= unit_start(slice
, NULL
);
216 assert_se(r
>= 0 || r
== -EALREADY
);
220 static void _test(const char *file
, unsigned line
, const char *func
,
221 Manager
*m
, const char *unit_name
, int status_expected
, int code_expected
) {
224 assert_se(unit_name
);
226 assert_se(manager_load_startable_unit_or_warn(m
, unit_name
, NULL
, &unit
) >= 0);
227 /* We need to start the slices as well otherwise the slice cgroups might be pruned
228 * in on_cgroup_empty_event. */
229 start_parent_slices(unit
);
230 assert_se(unit_start(unit
, NULL
) >= 0);
231 check_main_result(file
, line
, func
, m
, unit
, status_expected
, code_expected
);
233 #define test(m, unit_name, status_expected, code_expected) \
234 _test(PROJECT_FILE, __LINE__, __func__, m, unit_name, status_expected, code_expected)
236 static void _test_service(const char *file
, unsigned line
, const char *func
,
237 Manager
*m
, const char *unit_name
, ServiceResult result_expected
) {
240 assert_se(unit_name
);
242 assert_se(manager_load_startable_unit_or_warn(m
, unit_name
, NULL
, &unit
) >= 0);
243 assert_se(unit_start(unit
, NULL
) >= 0);
244 check_service_result(file
, line
, func
, m
, unit
, result_expected
);
246 #define test_service(m, unit_name, result_expected) \
247 _test_service(PROJECT_FILE, __LINE__, __func__, m, unit_name, result_expected)
249 static void test_exec_bindpaths(Manager
*m
) {
250 assert_se(mkdir_p("/tmp/test-exec-bindpaths", 0755) >= 0);
251 assert_se(mkdir_p("/tmp/test-exec-bindreadonlypaths", 0755) >= 0);
253 test(m
, "exec-bindpaths.service", can_unshare
? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
255 (void) rm_rf("/tmp/test-exec-bindpaths", REMOVE_ROOT
|REMOVE_PHYSICAL
);
256 (void) rm_rf("/tmp/test-exec-bindreadonlypaths", REMOVE_ROOT
|REMOVE_PHYSICAL
);
259 static void test_exec_cpuaffinity(Manager
*m
) {
260 _cleanup_(cpu_set_reset
) CPUSet c
= {};
262 assert_se(cpu_set_realloc(&c
, 8192) >= 0); /* just allocate the maximum possible size */
263 assert_se(sched_getaffinity(0, c
.allocated
, c
.set
) >= 0);
265 if (!CPU_ISSET_S(0, c
.allocated
, c
.set
)) {
266 log_notice("Cannot use CPU 0, skipping %s", __func__
);
270 test(m
, "exec-cpuaffinity1.service", 0, CLD_EXITED
);
271 test(m
, "exec-cpuaffinity2.service", 0, CLD_EXITED
);
273 if (!CPU_ISSET_S(1, c
.allocated
, c
.set
) ||
274 !CPU_ISSET_S(2, c
.allocated
, c
.set
)) {
275 log_notice("Cannot use CPU 1 or 2, skipping remaining tests in %s", __func__
);
279 test(m
, "exec-cpuaffinity3.service", 0, CLD_EXITED
);
282 static void test_exec_credentials(Manager
*m
) {
283 test(m
, "exec-set-credential.service", 0, CLD_EXITED
);
284 test(m
, "exec-load-credential.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_CREDENTIALS
, CLD_EXITED
);
285 test(m
, "exec-credentials-dir-specifier.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_CREDENTIALS
, CLD_EXITED
);
288 static void test_exec_workingdirectory(Manager
*m
) {
289 assert_se(mkdir_p("/tmp/test-exec_workingdirectory", 0755) >= 0);
291 test(m
, "exec-workingdirectory.service", 0, CLD_EXITED
);
292 test(m
, "exec-workingdirectory-trailing-dot.service", 0, CLD_EXITED
);
294 (void) rm_rf("/tmp/test-exec_workingdirectory", REMOVE_ROOT
|REMOVE_PHYSICAL
);
297 static void test_exec_execsearchpath(Manager
*m
) {
298 assert_se(mkdir_p("/tmp/test-exec_execsearchpath", 0755) >= 0);
300 assert_se(copy_file("/bin/ls", "/tmp/test-exec_execsearchpath/ls_temp", 0, 0777, COPY_REPLACE
) >= 0);
302 test(m
, "exec-execsearchpath.service", 0, CLD_EXITED
);
304 assert_se(rm_rf("/tmp/test-exec_execsearchpath", REMOVE_ROOT
|REMOVE_PHYSICAL
) >= 0);
306 test(m
, "exec-execsearchpath.service", EXIT_EXEC
, CLD_EXITED
);
309 static void test_exec_execsearchpath_specifier(Manager
*m
) {
310 test(m
, "exec-execsearchpath-unit-specifier.service", 0, CLD_EXITED
);
313 static void test_exec_execsearchpath_environment(Manager
*m
) {
314 test(m
, "exec-execsearchpath-environment.service", 0, CLD_EXITED
);
315 test(m
, "exec-execsearchpath-environment-path-set.service", 0, CLD_EXITED
);
318 static void test_exec_execsearchpath_environment_files(Manager
*m
) {
319 static const char path_not_set
[] =
320 "VAR1='word1 word2'\n"
326 "line without an equal\n"
329 "VAR5=password\\with\\backslashes";
331 static const char path_set
[] =
332 "VAR1='word1 word2'\n"
338 "line without an equal\n"
341 "VAR5=password\\with\\backslashes\n"
346 r
= write_string_file("/tmp/test-exec_execsearchpath_environmentfile.conf", path_not_set
, WRITE_STRING_FILE_CREATE
);
350 test(m
, "exec-execsearchpath-environmentfile.service", 0, CLD_EXITED
);
352 (void) unlink("/tmp/test-exec_environmentfile.conf");
355 r
= write_string_file("/tmp/test-exec_execsearchpath_environmentfile-set.conf", path_set
, WRITE_STRING_FILE_CREATE
);
359 test(m
, "exec-execsearchpath-environmentfile-set.service", 0, CLD_EXITED
);
361 (void) unlink("/tmp/test-exec_environmentfile-set.conf");
364 static void test_exec_execsearchpath_passenvironment(Manager
*m
) {
365 assert_se(setenv("VAR1", "word1 word2", 1) == 0);
366 assert_se(setenv("VAR2", "word3", 1) == 0);
367 assert_se(setenv("VAR3", "$word 5 6", 1) == 0);
368 assert_se(setenv("VAR4", "new\nline", 1) == 0);
369 assert_se(setenv("VAR5", "passwordwithbackslashes", 1) == 0);
371 test(m
, "exec-execsearchpath-passenvironment.service", 0, CLD_EXITED
);
373 assert_se(setenv("PATH", "/usr", 1) == 0);
374 test(m
, "exec-execsearchpath-passenvironment-set.service", 0, CLD_EXITED
);
376 assert_se(unsetenv("VAR1") == 0);
377 assert_se(unsetenv("VAR2") == 0);
378 assert_se(unsetenv("VAR3") == 0);
379 assert_se(unsetenv("VAR4") == 0);
380 assert_se(unsetenv("VAR5") == 0);
381 assert_se(unsetenv("PATH") == 0);
384 static void test_exec_personality(Manager
*m
) {
385 #if defined(__x86_64__)
386 test(m
, "exec-personality-x86-64.service", 0, CLD_EXITED
);
388 #elif defined(__s390__)
389 test(m
, "exec-personality-s390.service", 0, CLD_EXITED
);
391 #elif defined(__powerpc64__)
392 # if __BYTE_ORDER == __BIG_ENDIAN
393 test(m
, "exec-personality-ppc64.service", 0, CLD_EXITED
);
395 test(m
, "exec-personality-ppc64le.service", 0, CLD_EXITED
);
398 #elif defined(__aarch64__)
399 test(m
, "exec-personality-aarch64.service", 0, CLD_EXITED
);
401 #elif defined(__i386__)
402 test(m
, "exec-personality-x86.service", 0, CLD_EXITED
);
403 #elif defined(__loongarch64)
404 test(m
, "exec-personality-loongarch64.service", 0, CLD_EXITED
);
406 log_notice("Unknown personality, skipping %s", __func__
);
410 static void test_exec_ignoresigpipe(Manager
*m
) {
411 test(m
, "exec-ignoresigpipe-yes.service", 0, CLD_EXITED
);
412 test(m
, "exec-ignoresigpipe-no.service", SIGPIPE
, CLD_KILLED
);
415 static void test_exec_privatetmp(Manager
*m
) {
416 assert_se(touch("/tmp/test-exec_privatetmp") >= 0);
418 test(m
, "exec-privatetmp-yes.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
419 test(m
, "exec-privatetmp-no.service", 0, CLD_EXITED
);
420 test(m
, "exec-privatetmp-disabled-by-prefix.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
422 unlink("/tmp/test-exec_privatetmp");
425 static void test_exec_privatedevices(Manager
*m
) {
428 if (detect_container() > 0) {
429 log_notice("Testing in container, skipping %s", __func__
);
432 if (!is_inaccessible_available()) {
433 log_notice("Testing without inaccessible, skipping %s", __func__
);
437 test(m
, "exec-privatedevices-yes.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
438 test(m
, "exec-privatedevices-no.service", 0, CLD_EXITED
);
439 test(m
, "exec-privatedevices-disabled-by-prefix.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
440 test(m
, "exec-privatedevices-yes-with-group.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
442 /* We use capsh to test if the capabilities are
443 * properly set, so be sure that it exists */
444 r
= find_executable("capsh", NULL
);
446 log_notice_errno(r
, "Could not find capsh binary, skipping remaining tests in %s: %m", __func__
);
450 test(m
, "exec-privatedevices-yes-capability-mknod.service", can_unshare
|| MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
451 test(m
, "exec-privatedevices-no-capability-mknod.service", 0, CLD_EXITED
);
452 test(m
, "exec-privatedevices-yes-capability-sys-rawio.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
453 test(m
, "exec-privatedevices-no-capability-sys-rawio.service", 0, CLD_EXITED
);
456 static void test_exec_protecthome(Manager
*m
) {
458 log_notice("Cannot reliably unshare, skipping %s", __func__
);
462 test(m
, "exec-protecthome-tmpfs-vs-protectsystem-strict.service", 0, CLD_EXITED
);
465 static void test_exec_protectkernelmodules(Manager
*m
) {
468 if (detect_container() > 0) {
469 log_notice("Testing in container, skipping %s", __func__
);
472 if (!is_inaccessible_available()) {
473 log_notice("Testing without inaccessible, skipping %s", __func__
);
477 r
= find_executable("capsh", NULL
);
479 log_notice_errno(r
, "Skipping %s, could not find capsh binary: %m", __func__
);
483 test(m
, "exec-protectkernelmodules-no-capabilities.service", 0, CLD_EXITED
);
484 test(m
, "exec-protectkernelmodules-yes-capabilities.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
485 test(m
, "exec-protectkernelmodules-yes-mount-propagation.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
488 static void test_exec_readonlypaths(Manager
*m
) {
490 test(m
, "exec-readonlypaths-simple.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
492 if (path_is_read_only_fs("/var") > 0) {
493 log_notice("Directory /var is readonly, skipping remaining tests in %s", __func__
);
497 test(m
, "exec-readonlypaths.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
498 test(m
, "exec-readonlypaths-with-bindpaths.service", can_unshare
? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
499 test(m
, "exec-readonlypaths-mount-propagation.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
502 static void test_exec_readwritepaths(Manager
*m
) {
504 if (path_is_read_only_fs("/") > 0) {
505 log_notice("Root directory is readonly, skipping %s", __func__
);
509 test(m
, "exec-readwritepaths-mount-propagation.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
512 static void test_exec_inaccessiblepaths(Manager
*m
) {
514 if (!is_inaccessible_available()) {
515 log_notice("Testing without inaccessible, skipping %s", __func__
);
519 test(m
, "exec-inaccessiblepaths-sys.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
521 if (path_is_read_only_fs("/") > 0) {
522 log_notice("Root directory is readonly, skipping remaining tests in %s", __func__
);
526 test(m
, "exec-inaccessiblepaths-mount-propagation.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
529 static int on_spawn_io(sd_event_source
*s
, int fd
, uint32_t revents
, void *userdata
) {
530 char **result
= userdata
;
537 l
= read(fd
, buf
, sizeof(buf
) - 1);
549 assert_se(strextend(result
, buf
));
551 log_error("ldd: %s", buf
);
554 /* Re-enable the event source if we did not encounter EOF */
555 assert_se(sd_event_source_set_enabled(s
, SD_EVENT_ONESHOT
) >= 0);
559 static int on_spawn_timeout(sd_event_source
*s
, uint64_t usec
, void *userdata
) {
560 pid_t
*pid
= userdata
;
564 (void) kill(*pid
, SIGKILL
);
569 static int on_spawn_sigchld(sd_event_source
*s
, const siginfo_t
*si
, void *userdata
) {
574 if (si
->si_code
== CLD_EXITED
)
577 sd_event_exit(sd_event_source_get_event(s
), ret
);
581 static int find_libraries(const char *exec
, char ***ret
) {
582 _cleanup_(sd_event_unrefp
) sd_event
*e
= NULL
;
583 _cleanup_(sd_event_source_unrefp
) sd_event_source
*sigchld_source
= NULL
;
584 _cleanup_(sd_event_source_unrefp
) sd_event_source
*stdout_source
= NULL
;
585 _cleanup_(sd_event_source_unrefp
) sd_event_source
*stderr_source
= NULL
;
586 _cleanup_close_pair_
int outpipe
[2] = PIPE_EBADF
, errpipe
[2] = PIPE_EBADF
;
587 _cleanup_strv_free_
char **libraries
= NULL
;
588 _cleanup_free_
char *result
= NULL
;
595 assert_se(sigprocmask_many(SIG_BLOCK
, NULL
, SIGCHLD
, -1) >= 0);
597 assert_se(pipe2(outpipe
, O_NONBLOCK
|O_CLOEXEC
) == 0);
598 assert_se(pipe2(errpipe
, O_NONBLOCK
|O_CLOEXEC
) == 0);
600 r
= safe_fork_full("(spawn-ldd)",
601 (int[]) { -EBADF
, outpipe
[1], errpipe
[1] },
603 FORK_RESET_SIGNALS
|FORK_CLOSE_ALL_FDS
|FORK_DEATHSIG
|FORK_REARRANGE_STDIO
|FORK_LOG
, &pid
);
606 execlp("ldd", "ldd", exec
, NULL
);
610 outpipe
[1] = safe_close(outpipe
[1]);
611 errpipe
[1] = safe_close(errpipe
[1]);
613 assert_se(sd_event_new(&e
) >= 0);
615 assert_se(sd_event_add_time_relative(e
, NULL
, CLOCK_MONOTONIC
,
616 10 * USEC_PER_SEC
, USEC_PER_SEC
, on_spawn_timeout
, &pid
) >= 0);
617 assert_se(sd_event_add_io(e
, &stdout_source
, outpipe
[0], EPOLLIN
, on_spawn_io
, &result
) >= 0);
618 assert_se(sd_event_source_set_enabled(stdout_source
, SD_EVENT_ONESHOT
) >= 0);
619 assert_se(sd_event_add_io(e
, &stderr_source
, errpipe
[0], EPOLLIN
, on_spawn_io
, NULL
) >= 0);
620 assert_se(sd_event_source_set_enabled(stderr_source
, SD_EVENT_ONESHOT
) >= 0);
621 assert_se(sd_event_add_child(e
, &sigchld_source
, pid
, WEXITED
, on_spawn_sigchld
, NULL
) >= 0);
622 /* SIGCHLD should be processed after IO is complete */
623 assert_se(sd_event_source_set_priority(sigchld_source
, SD_EVENT_PRIORITY_NORMAL
+ 1) >= 0);
625 assert_se(sd_event_loop(e
) >= 0);
627 _cleanup_strv_free_
char **v
= NULL
;
628 assert_se(strv_split_newlines_full(&v
, result
, 0) >= 0);
631 _cleanup_free_
char *word
= NULL
;
634 r
= extract_first_word(&p
, &word
, NULL
, 0);
639 if (path_is_absolute(word
)) {
640 assert_se(strv_consume(&libraries
, TAKE_PTR(word
)) >= 0);
645 r
= extract_first_word(&p
, &word
, NULL
, 0);
650 if (!streq_ptr(word
, "=>"))
654 r
= extract_first_word(&p
, &word
, NULL
, 0);
659 if (path_is_absolute(word
)) {
660 assert_se(strv_consume(&libraries
, TAKE_PTR(word
)) >= 0);
665 *ret
= TAKE_PTR(libraries
);
669 static void test_exec_mount_apivfs(Manager
*m
) {
670 _cleanup_free_
char *fullpath_touch
= NULL
, *fullpath_test
= NULL
, *data
= NULL
;
671 _cleanup_strv_free_
char **libraries
= NULL
, **libraries_test
= NULL
;
674 assert_se(user_runtime_unit_dir
);
676 r
= find_executable("touch", &fullpath_touch
);
678 log_notice_errno(r
, "Skipping %s, could not find 'touch' command: %m", __func__
);
681 r
= find_executable("test", &fullpath_test
);
683 log_notice_errno(r
, "Skipping %s, could not find 'test' command: %m", __func__
);
687 assert_se(find_libraries(fullpath_touch
, &libraries
) >= 0);
688 assert_se(find_libraries(fullpath_test
, &libraries_test
) >= 0);
689 assert_se(strv_extend_strv(&libraries
, libraries_test
, true) >= 0);
691 assert_se(strextend(&data
, "[Service]\n"));
692 assert_se(strextend(&data
, "ExecStart=", fullpath_touch
, " /aaa\n"));
693 assert_se(strextend(&data
, "ExecStart=", fullpath_test
, " -f /aaa\n"));
694 assert_se(strextend(&data
, "BindReadOnlyPaths=", fullpath_touch
, "\n"));
695 assert_se(strextend(&data
, "BindReadOnlyPaths=", fullpath_test
, "\n"));
697 STRV_FOREACH(p
, libraries
)
698 assert_se(strextend(&data
, "BindReadOnlyPaths=", *p
, "\n"));
700 assert_se(write_drop_in(user_runtime_unit_dir
, "exec-mount-apivfs-no.service", 10, "bind-mount", data
) >= 0);
702 assert_se(mkdir_p("/tmp/test-exec-mount-apivfs-no/root", 0755) >= 0);
704 test(m
, "exec-mount-apivfs-no.service", can_unshare
|| !MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
706 (void) rm_rf("/tmp/test-exec-mount-apivfs-no/root", REMOVE_ROOT
|REMOVE_PHYSICAL
);
709 static void test_exec_noexecpaths(Manager
*m
) {
711 test(m
, "exec-noexecpaths-simple.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
714 static void test_exec_temporaryfilesystem(Manager
*m
) {
716 test(m
, "exec-temporaryfilesystem-options.service", can_unshare
? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
717 test(m
, "exec-temporaryfilesystem-ro.service", can_unshare
? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
718 test(m
, "exec-temporaryfilesystem-rw.service", can_unshare
? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
719 test(m
, "exec-temporaryfilesystem-usr.service", can_unshare
? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
722 static void test_exec_systemcallfilter(Manager
*m
) {
726 if (!is_seccomp_available()) {
727 log_notice("Seccomp not available, skipping %s", __func__
);
731 test(m
, "exec-systemcallfilter-not-failing.service", 0, CLD_EXITED
);
732 test(m
, "exec-systemcallfilter-not-failing2.service", 0, CLD_EXITED
);
733 test(m
, "exec-systemcallfilter-not-failing3.service", 0, CLD_EXITED
);
734 test(m
, "exec-systemcallfilter-failing.service", SIGSYS
, CLD_KILLED
);
735 test(m
, "exec-systemcallfilter-failing2.service", SIGSYS
, CLD_KILLED
);
736 test(m
, "exec-systemcallfilter-failing3.service", SIGSYS
, CLD_KILLED
);
738 r
= find_executable("python3", NULL
);
740 log_notice_errno(r
, "Skipping remaining tests in %s, could not find python3 binary: %m", __func__
);
744 test(m
, "exec-systemcallfilter-with-errno-name.service", errno_from_name("EILSEQ"), CLD_EXITED
);
745 test(m
, "exec-systemcallfilter-with-errno-number.service", 255, CLD_EXITED
);
746 test(m
, "exec-systemcallfilter-with-errno-multi.service", errno_from_name("EILSEQ"), CLD_EXITED
);
747 test(m
, "exec-systemcallfilter-with-errno-in-allow-list.service", errno_from_name("EILSEQ"), CLD_EXITED
);
748 test(m
, "exec-systemcallfilter-override-error-action.service", SIGSYS
, CLD_KILLED
);
749 test(m
, "exec-systemcallfilter-override-error-action2.service", errno_from_name("EILSEQ"), CLD_EXITED
);
753 static void test_exec_systemcallerrornumber(Manager
*m
) {
757 if (!is_seccomp_available()) {
758 log_notice("Seccomp not available, skipping %s", __func__
);
762 r
= find_executable("python3", NULL
);
764 log_notice_errno(r
, "Skipping %s, could not find python3 binary: %m", __func__
);
768 test(m
, "exec-systemcallerrornumber-name.service", errno_from_name("EACCES"), CLD_EXITED
);
769 test(m
, "exec-systemcallerrornumber-number.service", 255, CLD_EXITED
);
773 static void test_exec_restrictnamespaces(Manager
*m
) {
775 if (!is_seccomp_available()) {
776 log_notice("Seccomp not available, skipping %s", __func__
);
780 test(m
, "exec-restrictnamespaces-no.service", can_unshare
? 0 : EXIT_FAILURE
, CLD_EXITED
);
781 test(m
, "exec-restrictnamespaces-yes.service", 1, CLD_EXITED
);
782 test(m
, "exec-restrictnamespaces-mnt.service", can_unshare
? 0 : EXIT_FAILURE
, CLD_EXITED
);
783 test(m
, "exec-restrictnamespaces-mnt-deny-list.service", 1, CLD_EXITED
);
784 test(m
, "exec-restrictnamespaces-merge-and.service", can_unshare
? 0 : EXIT_FAILURE
, CLD_EXITED
);
785 test(m
, "exec-restrictnamespaces-merge-or.service", can_unshare
? 0 : EXIT_FAILURE
, CLD_EXITED
);
786 test(m
, "exec-restrictnamespaces-merge-all.service", can_unshare
? 0 : EXIT_FAILURE
, CLD_EXITED
);
790 static void test_exec_systemcallfilter_system(Manager
*m
) {
791 /* Skip this particular test case when running under ASan, as
792 * LSan intermittently segfaults when accessing memory right
793 * after the test finishes. Generally, ASan & LSan don't like
796 #if HAVE_SECCOMP && !HAS_FEATURE_ADDRESS_SANITIZER
797 if (!is_seccomp_available()) {
798 log_notice("Seccomp not available, skipping %s", __func__
);
802 test(m
, "exec-systemcallfilter-system-user.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
804 if (!check_nobody_user_and_group()) {
805 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__
);
809 if (!STR_IN_SET(NOBODY_USER_NAME
, "nobody", "nfsnobody")) {
810 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME
, __func__
);
814 test(m
, "exec-systemcallfilter-system-user-" NOBODY_USER_NAME
".service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
818 static void test_exec_user(Manager
*m
) {
819 test(m
, "exec-user.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
821 if (!check_nobody_user_and_group()) {
822 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__
);
826 if (!STR_IN_SET(NOBODY_USER_NAME
, "nobody", "nfsnobody")) {
827 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME
, __func__
);
831 test(m
, "exec-user-" NOBODY_USER_NAME
".service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
834 static void test_exec_group(Manager
*m
) {
835 test(m
, "exec-group.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
837 if (!check_nobody_user_and_group()) {
838 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__
);
842 if (!STR_IN_SET(NOBODY_GROUP_NAME
, "nobody", "nfsnobody", "nogroup")) {
843 log_notice("Unsupported nobody group name '%s', skipping remaining tests in %s", NOBODY_GROUP_NAME
, __func__
);
847 test(m
, "exec-group-" NOBODY_GROUP_NAME
".service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
850 static void test_exec_supplementarygroups(Manager
*m
) {
851 int status
= MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
;
852 test(m
, "exec-supplementarygroups.service", status
, CLD_EXITED
);
853 test(m
, "exec-supplementarygroups-single-group.service", status
, CLD_EXITED
);
854 test(m
, "exec-supplementarygroups-single-group-user.service", status
, CLD_EXITED
);
855 test(m
, "exec-supplementarygroups-multiple-groups-default-group-user.service", status
, CLD_EXITED
);
856 test(m
, "exec-supplementarygroups-multiple-groups-withgid.service", status
, CLD_EXITED
);
857 test(m
, "exec-supplementarygroups-multiple-groups-withuid.service", status
, CLD_EXITED
);
860 static char* private_directory_bad(Manager
*m
) {
861 /* This mirrors setup_exec_directory(). */
863 for (ExecDirectoryType dt
= 0; dt
< _EXEC_DIRECTORY_TYPE_MAX
; dt
++) {
864 _cleanup_free_
char *p
= NULL
;
867 assert_se(p
= path_join(m
->prefix
[dt
], "private"));
869 if (stat(p
, &st
) >= 0 &&
870 (st
.st_mode
& (S_IRWXG
|S_IRWXO
)))
877 static void test_exec_dynamicuser(Manager
*m
) {
878 _cleanup_free_
char *bad
= private_directory_bad(m
);
880 log_warning("%s: %s has bad permissions, skipping test.", __func__
, bad
);
884 if (strstr_ptr(ci_environment(), "github-actions")) {
885 log_notice("%s: skipping test on GH Actions because of systemd/systemd#10337", __func__
);
889 int status
= can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_NAMESPACE
: EXIT_GROUP
;
891 test(m
, "exec-dynamicuser-fixeduser.service", status
, CLD_EXITED
);
892 if (check_user_has_group_with_same_name("adm"))
893 test(m
, "exec-dynamicuser-fixeduser-adm.service", status
, CLD_EXITED
);
894 if (check_user_has_group_with_same_name("games"))
895 test(m
, "exec-dynamicuser-fixeduser-games.service", status
, CLD_EXITED
);
896 test(m
, "exec-dynamicuser-fixeduser-one-supplementarygroup.service", status
, CLD_EXITED
);
897 test(m
, "exec-dynamicuser-supplementarygroups.service", status
, CLD_EXITED
);
898 test(m
, "exec-dynamicuser-statedir.service", status
, CLD_EXITED
);
900 (void) rm_rf("/var/lib/quux", REMOVE_ROOT
|REMOVE_PHYSICAL
);
901 (void) rm_rf("/var/lib/test-dynamicuser-migrate", REMOVE_ROOT
|REMOVE_PHYSICAL
);
902 (void) rm_rf("/var/lib/test-dynamicuser-migrate2", REMOVE_ROOT
|REMOVE_PHYSICAL
);
903 (void) rm_rf("/var/lib/waldo", REMOVE_ROOT
|REMOVE_PHYSICAL
);
904 (void) rm_rf("/var/lib/private/quux", REMOVE_ROOT
|REMOVE_PHYSICAL
);
905 (void) rm_rf("/var/lib/private/test-dynamicuser-migrate", REMOVE_ROOT
|REMOVE_PHYSICAL
);
906 (void) rm_rf("/var/lib/private/test-dynamicuser-migrate2", REMOVE_ROOT
|REMOVE_PHYSICAL
);
907 (void) rm_rf("/var/lib/private/waldo", REMOVE_ROOT
|REMOVE_PHYSICAL
);
909 test(m
, "exec-dynamicuser-statedir-migrate-step1.service", 0, CLD_EXITED
);
910 test(m
, "exec-dynamicuser-statedir-migrate-step2.service", status
, CLD_EXITED
);
911 test(m
, "exec-dynamicuser-statedir-migrate-step1.service", 0, CLD_EXITED
);
913 (void) rm_rf("/var/lib/test-dynamicuser-migrate", REMOVE_ROOT
|REMOVE_PHYSICAL
);
914 (void) rm_rf("/var/lib/test-dynamicuser-migrate2", REMOVE_ROOT
|REMOVE_PHYSICAL
);
915 (void) rm_rf("/var/lib/private/test-dynamicuser-migrate", REMOVE_ROOT
|REMOVE_PHYSICAL
);
916 (void) rm_rf("/var/lib/private/test-dynamicuser-migrate2", REMOVE_ROOT
|REMOVE_PHYSICAL
);
918 test(m
, "exec-dynamicuser-runtimedirectory1.service", status
, CLD_EXITED
);
919 test(m
, "exec-dynamicuser-runtimedirectory2.service", status
, CLD_EXITED
);
920 test(m
, "exec-dynamicuser-runtimedirectory3.service", status
, CLD_EXITED
);
923 static void test_exec_environment(Manager
*m
) {
924 test(m
, "exec-environment-no-substitute.service", 0, CLD_EXITED
);
925 test(m
, "exec-environment.service", 0, CLD_EXITED
);
926 test(m
, "exec-environment-multiple.service", 0, CLD_EXITED
);
927 test(m
, "exec-environment-empty.service", 0, CLD_EXITED
);
930 static void test_exec_environmentfile(Manager
*m
) {
931 static const char e
[] =
932 "VAR1='word1 word2'\n"
938 "line without an equal\n"
941 "VAR5=password\\with\\backslashes";
944 r
= write_string_file("/tmp/test-exec_environmentfile.conf", e
, WRITE_STRING_FILE_CREATE
);
947 test(m
, "exec-environmentfile.service", 0, CLD_EXITED
);
949 (void) unlink("/tmp/test-exec_environmentfile.conf");
952 static void test_exec_passenvironment(Manager
*m
) {
953 /* test-execute runs under MANAGER_USER which, by default, forwards all
954 * variables present in the environment, but only those that are
955 * present _at the time it is created_!
957 * So these PassEnvironment checks are still expected to work, since we
958 * are ensuring the variables are not present at manager creation (they
959 * are unset explicitly in main) and are only set here.
961 * This is still a good approximation of how a test for MANAGER_SYSTEM
964 assert_se(setenv("VAR1", "word1 word2", 1) == 0);
965 assert_se(setenv("VAR2", "word3", 1) == 0);
966 assert_se(setenv("VAR3", "$word 5 6", 1) == 0);
967 assert_se(setenv("VAR4", "new\nline", 1) == 0);
968 assert_se(setenv("VAR5", "passwordwithbackslashes", 1) == 0);
969 test(m
, "exec-passenvironment.service", 0, CLD_EXITED
);
970 test(m
, "exec-passenvironment-repeated.service", 0, CLD_EXITED
);
971 test(m
, "exec-passenvironment-empty.service", 0, CLD_EXITED
);
972 assert_se(unsetenv("VAR1") == 0);
973 assert_se(unsetenv("VAR2") == 0);
974 assert_se(unsetenv("VAR3") == 0);
975 assert_se(unsetenv("VAR4") == 0);
976 assert_se(unsetenv("VAR5") == 0);
977 test(m
, "exec-passenvironment-absent.service", 0, CLD_EXITED
);
980 static void test_exec_umask(Manager
*m
) {
981 test(m
, "exec-umask-default.service", can_unshare
|| MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
982 test(m
, "exec-umask-0177.service", can_unshare
|| MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
985 static void test_exec_runtimedirectory(Manager
*m
) {
986 (void) rm_rf("/run/test-exec_runtimedirectory2", REMOVE_ROOT
|REMOVE_PHYSICAL
);
987 test(m
, "exec-runtimedirectory.service", 0, CLD_EXITED
);
988 (void) rm_rf("/run/test-exec_runtimedirectory2", REMOVE_ROOT
|REMOVE_PHYSICAL
);
990 test(m
, "exec-runtimedirectory-mode.service", 0, CLD_EXITED
);
991 test(m
, "exec-runtimedirectory-owner.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
993 if (!check_nobody_user_and_group()) {
994 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__
);
998 if (!STR_IN_SET(NOBODY_GROUP_NAME
, "nobody", "nfsnobody", "nogroup")) {
999 log_notice("Unsupported nobody group name '%s', skipping remaining tests in %s", NOBODY_GROUP_NAME
, __func__
);
1003 test(m
, "exec-runtimedirectory-owner-" NOBODY_GROUP_NAME
".service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
1006 static void test_exec_capabilityboundingset(Manager
*m
) {
1009 r
= find_executable("capsh", NULL
);
1011 log_notice_errno(r
, "Skipping %s, could not find capsh binary: %m", __func__
);
1015 if (have_effective_cap(CAP_CHOWN
) <= 0 ||
1016 have_effective_cap(CAP_FOWNER
) <= 0 ||
1017 have_effective_cap(CAP_KILL
) <= 0) {
1018 log_notice("Skipping %s, this process does not have enough capabilities", __func__
);
1022 test(m
, "exec-capabilityboundingset-simple.service", 0, CLD_EXITED
);
1023 test(m
, "exec-capabilityboundingset-reset.service", 0, CLD_EXITED
);
1024 test(m
, "exec-capabilityboundingset-merge.service", 0, CLD_EXITED
);
1025 test(m
, "exec-capabilityboundingset-invert.service", 0, CLD_EXITED
);
1028 static void test_exec_basic(Manager
*m
) {
1029 test(m
, "exec-basic.service", can_unshare
|| MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
1032 static void test_exec_ambientcapabilities(Manager
*m
) {
1035 /* Check if the kernel has support for ambient capabilities. Run
1036 * the tests only if that's the case. Clearing all ambient
1037 * capabilities is fine, since we are expecting them to be unset
1038 * in the first place for the tests. */
1039 r
= prctl(PR_CAP_AMBIENT
, PR_CAP_AMBIENT_CLEAR_ALL
, 0, 0, 0);
1040 if (r
< 0 && IN_SET(errno
, EINVAL
, EOPNOTSUPP
, ENOSYS
)) {
1041 log_notice("Skipping %s, the kernel does not support ambient capabilities", __func__
);
1045 if (have_effective_cap(CAP_CHOWN
) <= 0 ||
1046 have_effective_cap(CAP_NET_RAW
) <= 0) {
1047 log_notice("Skipping %s, this process does not have enough capabilities", __func__
);
1051 test(m
, "exec-ambientcapabilities.service", 0, CLD_EXITED
);
1052 test(m
, "exec-ambientcapabilities-merge.service", 0, CLD_EXITED
);
1054 if (!check_nobody_user_and_group()) {
1055 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__
);
1059 if (!STR_IN_SET(NOBODY_USER_NAME
, "nobody", "nfsnobody")) {
1060 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME
, __func__
);
1064 test(m
, "exec-ambientcapabilities-" NOBODY_USER_NAME
".service", 0, CLD_EXITED
);
1065 test(m
, "exec-ambientcapabilities-merge-" NOBODY_USER_NAME
".service", 0, CLD_EXITED
);
1068 static void test_exec_privatenetwork(Manager
*m
) {
1071 r
= find_executable("ip", NULL
);
1073 log_notice_errno(r
, "Skipping %s, could not find ip binary: %m", __func__
);
1077 test(m
, "exec-privatenetwork-yes-privatemounts-no.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_NETWORK
: EXIT_FAILURE
, CLD_EXITED
);
1078 test(m
, "exec-privatenetwork-yes-privatemounts-yes.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_NETWORK
: EXIT_NAMESPACE
, CLD_EXITED
);
1081 static void test_exec_networknamespacepath(Manager
*m
) {
1084 r
= find_executable("ip", NULL
);
1086 log_notice_errno(r
, "Skipping %s, could not find ip binary: %m", __func__
);
1090 test(m
, "exec-networknamespacepath-privatemounts-no.service", MANAGER_IS_SYSTEM(m
) ? EXIT_SUCCESS
: EXIT_FAILURE
, CLD_EXITED
);
1091 test(m
, "exec-networknamespacepath-privatemounts-yes.service", can_unshare
? EXIT_SUCCESS
: MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
1094 static void test_exec_oomscoreadjust(Manager
*m
) {
1095 test(m
, "exec-oomscoreadjust-positive.service", 0, CLD_EXITED
);
1097 if (detect_container() > 0) {
1098 log_notice("Testing in container, skipping remaining tests in %s", __func__
);
1101 test(m
, "exec-oomscoreadjust-negative.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_FAILURE
, CLD_EXITED
);
1104 static void test_exec_ioschedulingclass(Manager
*m
) {
1105 test(m
, "exec-ioschedulingclass-none.service", 0, CLD_EXITED
);
1106 test(m
, "exec-ioschedulingclass-idle.service", 0, CLD_EXITED
);
1107 test(m
, "exec-ioschedulingclass-best-effort.service", 0, CLD_EXITED
);
1109 if (detect_container() > 0) {
1110 log_notice("Testing in container, skipping remaining tests in %s", __func__
);
1113 test(m
, "exec-ioschedulingclass-realtime.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_IOPRIO
, CLD_EXITED
);
1116 static void test_exec_unsetenvironment(Manager
*m
) {
1117 test(m
, "exec-unsetenvironment.service", 0, CLD_EXITED
);
1120 static void test_exec_specifier(Manager
*m
) {
1121 test(m
, "exec-specifier.service", can_unshare
|| MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_FAILURE
, CLD_EXITED
);
1122 if (MANAGER_IS_SYSTEM(m
))
1123 test(m
, "exec-specifier-system.service", 0, CLD_EXITED
);
1125 test(m
, "exec-specifier-user.service", 0, CLD_EXITED
);
1126 test(m
, "exec-specifier@foo-bar.service", can_unshare
|| MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_FAILURE
, CLD_EXITED
);
1127 test(m
, "exec-specifier-interpolation.service", 0, CLD_EXITED
);
1130 static void test_exec_standardinput(Manager
*m
) {
1131 test(m
, "exec-standardinput-data.service", 0, CLD_EXITED
);
1132 test(m
, "exec-standardinput-file.service", 0, CLD_EXITED
);
1133 test(m
, "exec-standardinput-file-cat.service", 0, CLD_EXITED
);
1136 static void test_exec_standardoutput(Manager
*m
) {
1137 test(m
, "exec-standardoutput-file.service", 0, CLD_EXITED
);
1140 static void test_exec_standardoutput_append(Manager
*m
) {
1141 test(m
, "exec-standardoutput-append.service", 0, CLD_EXITED
);
1144 static void test_exec_standardoutput_truncate(Manager
*m
) {
1145 test(m
, "exec-standardoutput-truncate.service", 0, CLD_EXITED
);
1148 static void test_exec_condition(Manager
*m
) {
1149 test_service(m
, "exec-condition-failed.service", SERVICE_FAILURE_EXIT_CODE
);
1150 test_service(m
, "exec-condition-skip.service", SERVICE_SKIP_CONDITION
);
1153 static void test_exec_umask_namespace(Manager
*m
) {
1154 /* exec-specifier-credentials-dir.service creates /run/credentials and enables implicit
1155 * InaccessiblePath= for the directory for all later services with mount namespace. */
1156 if (!is_inaccessible_available()) {
1157 log_notice("Testing without inaccessible, skipping %s", __func__
);
1160 test(m
, "exec-umask-namespace.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_NAMESPACE
: EXIT_GROUP
, CLD_EXITED
);
1163 typedef struct test_entry
{
1168 #define entry(x) {x, #x}
1170 static void run_tests(RuntimeScope scope
, char **patterns
) {
1171 _cleanup_(rm_rf_physical_and_freep
) char *runtime_dir
= NULL
;
1172 _cleanup_free_
char *unit_paths
= NULL
;
1173 _cleanup_(manager_freep
) Manager
*m
= NULL
;
1176 static const test_entry tests
[] = {
1177 entry(test_exec_basic
),
1178 entry(test_exec_ambientcapabilities
),
1179 entry(test_exec_bindpaths
),
1180 entry(test_exec_capabilityboundingset
),
1181 entry(test_exec_condition
),
1182 entry(test_exec_cpuaffinity
),
1183 entry(test_exec_credentials
),
1184 entry(test_exec_dynamicuser
),
1185 entry(test_exec_environment
),
1186 entry(test_exec_environmentfile
),
1187 entry(test_exec_execsearchpath
),
1188 entry(test_exec_execsearchpath_environment
),
1189 entry(test_exec_execsearchpath_environment_files
),
1190 entry(test_exec_execsearchpath_passenvironment
),
1191 entry(test_exec_execsearchpath_specifier
),
1192 entry(test_exec_group
),
1193 entry(test_exec_ignoresigpipe
),
1194 entry(test_exec_inaccessiblepaths
),
1195 entry(test_exec_ioschedulingclass
),
1196 entry(test_exec_mount_apivfs
),
1197 entry(test_exec_networknamespacepath
),
1198 entry(test_exec_noexecpaths
),
1199 entry(test_exec_oomscoreadjust
),
1200 entry(test_exec_passenvironment
),
1201 entry(test_exec_personality
),
1202 entry(test_exec_privatedevices
),
1203 entry(test_exec_privatenetwork
),
1204 entry(test_exec_privatetmp
),
1205 entry(test_exec_protecthome
),
1206 entry(test_exec_protectkernelmodules
),
1207 entry(test_exec_readonlypaths
),
1208 entry(test_exec_readwritepaths
),
1209 entry(test_exec_restrictnamespaces
),
1210 entry(test_exec_runtimedirectory
),
1211 entry(test_exec_specifier
),
1212 entry(test_exec_standardinput
),
1213 entry(test_exec_standardoutput
),
1214 entry(test_exec_standardoutput_append
),
1215 entry(test_exec_standardoutput_truncate
),
1216 entry(test_exec_supplementarygroups
),
1217 entry(test_exec_systemcallerrornumber
),
1218 entry(test_exec_systemcallfilter
),
1219 entry(test_exec_systemcallfilter_system
),
1220 entry(test_exec_temporaryfilesystem
),
1221 entry(test_exec_umask
),
1222 entry(test_exec_umask_namespace
),
1223 entry(test_exec_unsetenvironment
),
1224 entry(test_exec_user
),
1225 entry(test_exec_workingdirectory
),
1229 assert_se(unsetenv("USER") == 0);
1230 assert_se(unsetenv("LOGNAME") == 0);
1231 assert_se(unsetenv("SHELL") == 0);
1232 assert_se(unsetenv("HOME") == 0);
1233 assert_se(unsetenv("TMPDIR") == 0);
1235 /* Unset VARx, especially, VAR1, VAR2 and VAR3, which are used in the PassEnvironment test cases,
1236 * otherwise (and if they are present in the environment), `manager_default_environment` will copy
1237 * them into the default environment which is passed to each created job, which will make the tests
1238 * that expect those not to be present to fail. */
1239 assert_se(unsetenv("VAR1") == 0);
1240 assert_se(unsetenv("VAR2") == 0);
1241 assert_se(unsetenv("VAR3") == 0);
1242 assert_se(unsetenv("VAR4") == 0);
1243 assert_se(unsetenv("VAR5") == 0);
1245 assert_se(runtime_dir
= setup_fake_runtime_dir());
1246 assert_se(user_runtime_unit_dir
= path_join(runtime_dir
, "systemd/user"));
1247 assert_se(unit_paths
= strjoin(PRIVATE_UNIT_DIR
, ":", user_runtime_unit_dir
));
1248 assert_se(set_unit_path(unit_paths
) >= 0);
1250 r
= manager_new(scope
, MANAGER_TEST_RUN_BASIC
, &m
);
1251 if (manager_errno_skip_test(r
))
1252 return (void) log_tests_skipped_errno(r
, "manager_new");
1255 m
->default_std_output
= EXEC_OUTPUT_NULL
; /* don't rely on host journald */
1256 assert_se(manager_startup(m
, NULL
, NULL
, NULL
) >= 0);
1258 /* Uncomment below if you want to make debugging logs stored to journal. */
1259 //manager_override_log_target(m, LOG_TARGET_AUTO);
1260 //manager_override_log_level(m, LOG_DEBUG);
1262 for (const test_entry
*test
= tests
; test
->f
; test
++)
1263 if (strv_fnmatch_or_empty(patterns
, test
->name
, FNM_NOESCAPE
))
1266 log_info("Skipping %s because it does not match any pattern.", test
->name
);
1269 static int prepare_ns(const char *process_name
) {
1272 r
= safe_fork(process_name
,
1273 FORK_RESET_SIGNALS
|
1274 FORK_CLOSE_ALL_FDS
|
1284 _cleanup_free_
char *unit_dir
= NULL
;
1286 /* Make "/" read-only. */
1287 assert_se(mount_nofollow_verbose(LOG_DEBUG
, NULL
, "/", NULL
, MS_BIND
|MS_REMOUNT
, NULL
) >= 0);
1289 /* Creating a new user namespace in the above means all MS_SHARED mounts become MS_SLAVE.
1290 * Let's put them back to MS_SHARED here, since that's what we want as defaults. (This will
1291 * not reconnect propagation, but simply create new peer groups for all our mounts). */
1292 assert_se(mount_follow_verbose(LOG_DEBUG
, NULL
, "/", NULL
, MS_SHARED
|MS_REC
, NULL
) >= 0);
1294 assert_se(mkdir_p(PRIVATE_UNIT_DIR
, 0755) >= 0);
1296 /* Mount tmpfs on the following directories to make not StateDirectory= or friends disturb the host. */
1297 FOREACH_STRING(p
, "/dev/shm", "/root", "/tmp", "/var/tmp", "/var/lib", PRIVATE_UNIT_DIR
)
1298 assert_se(mount_nofollow_verbose(LOG_DEBUG
, "tmpfs", p
, "tmpfs", MS_NOSUID
|MS_NODEV
, NULL
) >= 0);
1300 /* Copy unit files to make them accessible even when unprivileged. */
1301 assert_se(get_testdata_dir("test-execute/", &unit_dir
) >= 0);
1302 assert_se(copy_directory(unit_dir
, PRIVATE_UNIT_DIR
, COPY_MERGE_EMPTY
) >= 0);
1304 /* Prepare credstore like tmpfiles.d/credstore.conf for LoadCredential= tests. */
1305 FOREACH_STRING(p
, "/run/credstore", "/run/credstore.encrypted") {
1306 assert_se(mkdir_p(p
, 0) >= 0);
1307 assert_se(mount_nofollow_verbose(LOG_DEBUG
, "tmpfs", p
, "tmpfs", MS_NOSUID
|MS_NODEV
, "mode=0000") >= 0);
1310 assert_se(write_string_file("/run/credstore/test-execute.load-credential", "foo", WRITE_STRING_FILE_CREATE
) >= 0);
1316 TEST(run_tests_root
) {
1317 _cleanup_strv_free_
char **filters
= NULL
;
1319 if (!have_namespaces())
1320 return (void) log_tests_skipped("unshare() is disabled");
1322 /* safe_fork() clears saved_argv in the child process. Let's copy it. */
1323 assert_se(filters
= strv_copy(strv_skip(saved_argv
, 1)));
1325 if (prepare_ns("(test-execute-root)") == 0) {
1327 run_tests(RUNTIME_SCOPE_SYSTEM
, filters
);
1328 _exit(EXIT_SUCCESS
);
1332 TEST(run_tests_without_unshare
) {
1333 if (!have_namespaces()) {
1334 /* unshare() is already filtered. */
1335 can_unshare
= false;
1336 run_tests(RUNTIME_SCOPE_SYSTEM
, strv_skip(saved_argv
, 1));
1341 _cleanup_strv_free_
char **filters
= NULL
;
1344 /* The following tests are for 1beab8b0d0ff2d7d1436b52d4a0c3d56dc908962. */
1345 if (!is_seccomp_available())
1346 return (void) log_tests_skipped("Seccomp not available, cannot run unshare() filtered tests");
1348 /* safe_fork() clears saved_argv in the child process. Let's copy it. */
1349 assert_se(filters
= strv_copy(strv_skip(saved_argv
, 1)));
1351 if (prepare_ns("(test-execute-without-unshare)") == 0) {
1352 _cleanup_hashmap_free_ Hashmap
*s
= NULL
;
1354 r
= seccomp_syscall_resolve_name("unshare");
1355 assert_se(r
!= __NR_SCMP_ERROR
);
1356 assert_se(hashmap_ensure_put(&s
, NULL
, UINT32_TO_PTR(r
+ 1), INT_TO_PTR(-1)) >= 0);
1357 assert_se(seccomp_load_syscall_filter_set_raw(SCMP_ACT_ALLOW
, s
, SCMP_ACT_ERRNO(EOPNOTSUPP
), true) >= 0);
1359 /* Check unshare() is actually filtered. */
1360 assert_se(unshare(CLONE_NEWNS
) < 0);
1361 assert_se(errno
== EOPNOTSUPP
);
1363 can_unshare
= false;
1364 run_tests(RUNTIME_SCOPE_SYSTEM
, filters
);
1365 _exit(EXIT_SUCCESS
);
1368 log_tests_skipped("Built without seccomp support, cannot run unshare() filtered tests");
1372 TEST(run_tests_unprivileged
) {
1373 _cleanup_strv_free_
char **filters
= NULL
;
1375 if (!have_namespaces())
1376 return (void) log_tests_skipped("unshare() is disabled");
1378 /* safe_fork() clears saved_argv in the child process. Let's copy it. */
1379 assert_se(filters
= strv_copy(strv_skip(saved_argv
, 1)));
1381 if (prepare_ns("(test-execute-unprivileged)") == 0) {
1382 assert_se(capability_bounding_set_drop(0, /* right_now = */ true) >= 0);
1384 can_unshare
= false;
1385 run_tests(RUNTIME_SCOPE_USER
, filters
);
1386 _exit(EXIT_SUCCESS
);
1390 static int intro(void) {
1391 #if HAS_FEATURE_ADDRESS_SANITIZER
1392 if (strstr_ptr(ci_environment(), "travis") || strstr_ptr(ci_environment(), "github-actions"))
1393 return log_tests_skipped("Running on Travis CI/GH Actions under ASan, see https://github.com/systemd/systemd/issues/10696");
1395 /* It is needed otherwise cgroup creation fails */
1396 if (geteuid() != 0 || have_effective_cap(CAP_SYS_ADMIN
) <= 0)
1397 return log_tests_skipped("not privileged");
1399 if (enter_cgroup_subroot(NULL
) == -ENOMEDIUM
)
1400 return log_tests_skipped("cgroupfs not available");
1402 if (path_is_read_only_fs("/sys") > 0)
1403 return log_tests_skipped("/sys is mounted read-only");
1405 /* Create dummy network interface for testing PrivateNetwork=yes */
1406 (void) system("ip link add dummy-test-exec type dummy");
1408 /* Create a network namespace and a dummy interface in it for NetworkNamespacePath= */
1409 (void) system("ip netns add test-execute-netns");
1410 (void) system("ip netns exec test-execute-netns ip link add dummy-test-ns type dummy");
1412 return EXIT_SUCCESS
;
1415 static int outro(void) {
1416 (void) system("ip link del dummy-test-exec");
1417 (void) system("ip netns del test-execute-netns");
1418 (void) rmdir(PRIVATE_UNIT_DIR
);
1420 return EXIT_SUCCESS
;
1423 DEFINE_TEST_MAIN_FULL(LOG_DEBUG
, intro
, outro
);